The Schwarzer See is a lake on the German Baltic Sea island of Rügen.

It belongs to the municipality of Sellin and is located in the Granitz Forest.

Here, peat moss, cottongrasses, bog-bean, cranberries and bog rosemary occur.

The entire lake, the bogs around its shores and a 100-metre-wide strip of the wood surrounding the lake are designated as a core zone of the Southeast Rügen Biosphere Reserve.

That said, the lake is accessible to hikers and cyclists along the path from Binz to Sellin.